Mitsubishi Mirage G4 key fob battery
3 of the 8 model years listed for the Mitsubishi Mirage G4 have a proven battery. The most common answer is CR1620. Rows below run oldest to newest; a year can appear twice when the car came with more than one kind of key.
- 2017-2021Smart key
Not confirmed yet
- 2018-2020Key-head remote
CR1620
FCC ID OUCJ166NTwo sites agree: uhs-hardware.com and energizer.com (checked Nov 2, 2026)
Find CR1620 on Amazon - 2021-2023Unknown
Not confirmed yet
- 2024Unknown
Not confirmed yet
Changing the battery
Key with remote in the head
- The remote electronics sit in the plastic head of the key itself, so there is no separate fob to open.
- Work a thin flat tool into the seam near the blade and twist; go round slowly if it does not open at once.
- Replace the cell with the same face showing, and make sure the rubber keypad sits flat before closing.
- Snap it closed and press each button. The car still starts with a dead remote battery on most of these keys, because the start chip needs no battery.
A CR1620 is 16 mm across and 2.0 mm thick. It is easy to confuse with the 20 mm CR20xx sizes, which will not fit.
Keep spare coin cells away from small children. A swallowed coin cell can burn the throat within hours; if it happens, go to an emergency room at once.